Hitachi RPC-1.5FSN3 Installation And Operation Manual page 37

ELECTrICAL WIrING
17.2.2 Harmonics
In relation to IEC 61000-3-2 and IEC 61000-3-12, the situation of
harmonics for each model is as follows:
situation of the models in relation to
iec 61000- 3-2 and iec 61000-3-12 ssc
"xx"
Installation restrictions may be applied by
supply authorities in relation to harmonics
17.2.3 Position of electrical wiring connection
!
d a n G e r
• Tightly secure wirings to the terminal board according to the
specified torque. If tightening the terminals is not completed,
heat generation, an electric shock or a fire will occur at the
terminal connection.
• Make sure that the wires are securely fixed in order not to apply
an external force to the terminal connections of the wirings. If
fixing is not completed, heat generation or a fire will occur.
The connections at the terminal board for the indoor unit is
shown in the figure below. Check the outdoor unit for the
combination before the wiring work. The screws at the terminal
board should be performed according to the tightening torque as
shown in the table below.
M4
terminal board for power
source cable tb1 (black)
-
R/L1 S/N
!
c a u t i o n
• Do not connect the main power source cables to the control line
(Terminals A, B, 1 and 2 of TB2). If connected, the printed circuit
board (PCB) will be broken.
• Pay attention to followings when wires are connected to terminal
board.
(A) Attach an insulation tape or a sleeve to each terminal.
(B) Maintain the distance between the electrical box and the terminals
to prevent a short circuit.
(C) Maintain the distance between the terminals.
(B)
1 Connect the cable for the optional remote control switch
or the optional extension cable to the terminals inside the
electrical box through the connecting hole in the cabinet.
2 Connect the power supply and the earth wires to the
terminals in the electrical box.
35 PMML0254A rev.4 - 12/2018
model
RPc-(1.5-6.0)fsn3
tightening torque for terminals
1.0 - 1.3 (Nm)
terminal board for
control cable tb2 (white)
A B 1 2
(C)
Screw
Screw
(A)
3 Connect the wires between the indoor unit and the outdoor
unit to the terminals in the electrical box.
4 Connect cables correctly to match the terminal No. and the
mark band.
5 Connect the transition wires between indoor units connected
to the same outdoor unit.
6 Do not connect the main power source cables to the control
line (Terminals A, B, 1 and 2 of TB2). If connected, the
printed circuit board (PCB) will be broken.
7 Tightly clamp the wires using the cord clamp inside the
electrical box.
8 The wiring work for the indoor unit should be performed
according to the electrical wiring diagram and Installation
and Operation Manual of the outdoor unit.
9 remote control switch connection
a. Installing remote control switch to each unit with
individual operation setting.
Indoor unit
Outdoor unit
remote
control
switch
b. Installing one remote control switch with individual
operation setting.
Indoor unit
Outdoor unit
remote
control
switch
c. Simultaneous operation. The indoor unit is H-LINK II
model. (For UTOPIA series only)
Indoor unit
Outdoor unit
remote
control
switch
Set DSW6-1 OFF
?
n o t e
(*) This indoor unit is adopted 4 steps of fan speed (HIGH 2, HIGH, MED
and LOW). When installing this indoor unit with 3 steps of fan speed type,
connect the remote control switch to 4 steps of fan speed type. If not,
"HIGH 2" will not be indicated and can not be selected.
Indoor unit
remote
control
switch
The transition wiring
for the remote control
Indoor unit
switch is required.
Indoor unit
(*)